My Exchange 2007 server has mailbox database.edb file, that is 137 GB in size
If I pull the report by running a command " Get-MailboxStatistics -Database “Mailbox Database” | Select DisplayName, TotalItemSize | Export-CSV.." , then summarize TotalItemSize for all mailboxes, I am getting 160 GB number. Several days ago it was 172 GB, but after the users ran some cleanup the size reduced to 160 GB. The size ofa mailbox database.edb file still is growing though.
Could anybody help me to figure out why there is a difference between the size of mailbox database.edb file and a sum of all TotalItemSize items.